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Plumbing Refreshers > NSCP NUMBERS > Flashcards

NSCP NUMBERS Flashcards

1
Q

Number of plumbing plan sets submitted for permit application

A

6 sets

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2
Q

Number of approved plan sets retained by the Administrative Authority

A

1 set

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3
Q

Number of plan sets returned to the applicant

A

2 sets

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4
Q

Number of plan sets returned to the Owner

A

2 sets

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5
Q

Number of plan sets kept at the job site

A

1 set

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6
Q

Expiration of plumbing permit if work not commenced

A

1 year

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7
Q

Expiration of plumbing permit if work suspended or abandoned

A

120 days

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8
Q

Renewal fee for expired plumbing permit

A

50% of the original fee

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9
Q

Deadline for inspection request after equipment replacement

A

Within 72 hours

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10
Q

Definition of an alley

A

2m to less than 3m wide

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11
Q

Definition of a court

A

Bounded by 2 or more sides

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12
Q

Definition of unobstructed yards

A

Open from ground to sky

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13
Q

Function of a group vent

A

Serves 2 or more traps

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14
Q

Minimum branch interval height

A

2.43 m

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15
Q

Melting point for brazed joints

A

Above 449°C but below part’s melting temp

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16
Q

Melting point for soldered joints

A

1490°C, 427°C

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17
Q

Minimum distance of building sewer from building foundation

A

0.60 m

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18
Q

Distance of mobile home park sewer from last mobile home

A

0.60 m

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19
Q

Maximum angle for horizontal pipes

A

45 degrees

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20
Q

Maximum angle for vertical pipes

A

45 degrees

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21
Q

Combustion temperature for combustible construction

A

756°C

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22
Q

Volume defining a confined space

A

Less than 2501.4 cu. m

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23
Q

Water flow conversion for fixture units

A

28.3 lpm, 7.48 gpm, 30 qtpm, 1 cftpm

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24
Q

Minimum capacity of a grease interceptor

A

3 cu. m.

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25
Q

Number of traps served by a unit vent

A

2

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26
Q

Plumbing unit inventory (each counts as 1 unit)

A

Water meter, water closet, lavatory, shower head and drain, kitchen sink, laundry tray, 3 floor drains, 4 faucets/hose bibb

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27
Q

Recommended slope for horizontal drainage pipes

A

2%

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28
Q

Permissible slope for larger diameter pipes (203mm and above)

A

0.50%

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29
Q

Minimum size difference for double sanitary tees

A

2 pipe sizes

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30
Q

Minimum depth of building sewer below ground

A

0.30 m

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31
Q

Maximum depth of building sewer below ground

A

0.60 m

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32
Q

Clear height above pipe in tunnels

A

0.6 m

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33
Q

Maximum tunnel length without support

A

1/2 the depth of trench or 2.4 m

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34
Q

Required backfill above pipe

A

0.30 m clean earth

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35
Q

Minimum metal thickness for special-use sinks

A

GA 16 (1.6 mm)

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36
Q

Minimum thickness for waste tailpieces

A

GA 20 (0.8 mm)

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37
Q

Minimum diameter for sink tailpieces

A

38 mm O.D.

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38
Q

Minimum diameter for lavatory tailpieces

A

32 mm O.D.

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39
Q

Clearance requirements around water closets and urinals

A

0.375 m to side wall, 0.75 m center to center for closets; 0.30 m to side wall, 0.60 m center to center for urinals

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40
Q

Minimum shower dimensions

A

Interior area: 0.6 sq. m, Minimum diameter: 762 mm, Threshold height: 25.4 mm to 228 mm

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41
Q

Lining material height above shower threshold for above-ground installations

A

At least 76 mm

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42
Q

Extension of lining materials upward on rough jambs

A

76 mm

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43
Q

Standard grade of roofing felt for shower sub-pans

A

6.8 kg

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44
Q

Extension of folds, laps, and webbing in shower linings

A

101 mm

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45
Q

Minimum tensile strength of mesh/webbing for lining

A

0.9 kg/mm

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46
Q

Prohibition on nailing or perforating linings above the threshold

A

L 25.4 mm

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47
Q

Minimum weight of lead pans or liners

A

19.6 kg/m2

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48
Q

Minimum thickness of copper pans or liners

A

GA 24 (0.5 mm)

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49
Q

Slope of gutters in public or gang shower rooms

A

20/0

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50
Q

Maximum spacing of gutter drains in public shower rooms

A

4.9 m

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51
Q

Maximum temperature for hot water delivery

A

48.88°C

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52
Q

Equivalent lavatory unit for a 609.6 mm wide wash sink

A

1 lavatory

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53
Q

Equivalent lavatory unit for a 457.2 mm diameter circular basin

A

1 lavatory

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54
Q

Lavatory to person ratio in hazardous environments

A

1:50

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55
Q

Laundry tray to person ratio

A

0.111111111

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56
Q

Slope sink tray to person ratio

A

1:30

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57
Q

Water closet and urinal to person ratio for temporary workers

A

1:30

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58
Q

Side lining requirement around urinals

A

0.6 m

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59
Q

Height of non-absorbent lining above urinals

A

1.2 m

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60
Q

Drinking fountain to person ratio in public buildings

A

0.09375

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61
Q

Additional drinking fountain requirement

A

1 per 150 persons beyond the first 75

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62
Q

Notice period for inspection readiness

A

3 days

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63
Q

Water head for pipe testing

A

3 meters

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64
Q

Duration to hold water before inspection starts

A

15 minutes

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65
Q

Air pressure gauge for testing

A

34.5 kPa

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66
Q

Duration to hold air pressure during test

A

15 minutes

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67
Q

Water pressure for piping tests

A

50% above working pressure

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68
Q

Air pressure alternative for water test

A

344.5 kPa

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69
Q

Minimum air gap for fixtures not affected by side walls

A

2 x diameter

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70
Q

Minimum air gap for fixtures affected by side walls

A

3 x diameter

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71
Q

Approval conditions for air gaps smaller than 25mm

A

Tested with vacuums from 0 to 63.5 cm of mercury

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72
Q

Minimum elevation of Atmospheric Vacuum Breaker (AVB)

A

150 mm above piping and rim

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73
Q

Space clearance for assembly installations

A

30.5 cm

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74
Q

Minimum elevation of Spill-Proof Pressure Type vacuum breaker

A

152 mm above piping and rim

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75
Q

Elevation requirement for installations with platforms

A

1.52 m above floor/grade

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76
Q

Minimum air gap for water distribution systems

A

25 mm or 2 pipe diameters

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77
Q

Installation height of atmospheric vacuum breaker

A

152 mm above flood level rim

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78
Q

Minimum operating temperature for backflow prevention devices

A

43.3°C

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79
Q

Minimum height of AVB above overflow rim

A

152 mm

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80
Q

Minimum height of ballcock above overflow pipe

A

25 mm

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81
Q

Installation height for non-removable hose bibb-type backflow preventers

A

152 mm above point of usage

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82
Q

Size requirement for galvanization in water piping

A

51 mm or smaller

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83
Q

Maximum allowable lead content in water pipes

A

8%

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84
Q

Mesh size for gravity tanks vent screens

A

14 to 18 per 25 mm

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85
Q

Indicators of water pressure adequacy

A

Less than 103 kPa inadequate, more than 551 kPa excessive

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86
Q

Maximum pressure for relief valves

A

1033 kPa

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87
Q

Drain pipe elevation for pressure relief valves

A

152 to 600 mm above ground

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88
Q

Minimum separation of water and sewer lines

A

0.30 m

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89
Q

Maximum distance of unions from equipment

A

0.30 m

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90
Q

Support intervals for piping

A

4 feet (1219 mm)

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91
Q

Support requirement for trap arms longer than 3 feet (914 mm)

A

As close as possible

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92
Q

Minimum size of water service pipe

A

19 mm Ø

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93
Q

Minimum size of building supply pipes

A

13 mm Ø

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94
Q

Minimum clearance for galvanized pipes above ground

A

152 mm

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95
Q

Minimum depth for vitrified clay pipes below ground

A

0.30 m

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96
Q

Allowable grade for threads of draining fittings

A

2%

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97
Q

Fixture unit rating for various installations

A

Clothes washer: 3 units; Sump pump/ejector: 0.063 L/S per unit

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98
Q

Intervals for cleanouts on piping runs

A

15 m

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99
Q

Minimum front clearance for cleanouts

A

305 mm for ≤51 mm, 450 mm for >51 mm

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100
Q

Vertical and horizontal clearance for underground cleanouts

A

0.45 m vertical, 0.75 m horizontal

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101
Q

Maximum distance for underfloor cleanouts from access points

A

6.1 m

102
Q

Minimum size of pump discharge pipe from a sump with a water closet

A

50.8 mm

103
Q

Minimum height of the lowest inlet above the high water level in sumps

A

51 mm

104
Q

Minimum size of vent for sumps and receiving tanks

A

51 mm Ø

105
Q

Minimum air pressure per meter of height for sewage elevation

A

3 kg/m

106
Q

Distance for no connections below suds-producing fixtures in a stack

A

2.4 m

107
Q

Maximum number of water closets or traps on any vertical stack

A

4

108
Q

Maximum number of water closets or traps on any horizontal branch

A

3

109
Q

Minimum diameter of an individual vent

A

32 mm Ø

110
Q

Maximum length of unvented indirect waste pipe

A

Between 1.5 m and 4.6 m

111
Q

Maximum diameter of indirect waste pipe relative to drain outlet

A

Less than 4.6 m

112
Q

Minimum diameter of indirect waste pipe

A

13 mm Ø

113
Q

Extension of standpipe for clothes washer above its trap

A

0.45 m to 0.80 m

114
Q

Height of the trap for clothes washer standpipe above the floor

A

0.15 m to 0.45 m

115
Q

Maximum temperature for water discharged into the drainage system

A

Not specified

116
Q

Minimum depth of seal for condenser and sump traps

A

152 mm

117
Q

Diameter of siphon breaker in deep seal traps

A

19 mm Ø

118
Q

Minimum thickness of concrete walls/bottoms in sumps

A

102 mm

119
Q

Minimum plaster thickness inside sumps

A

13 mm

120
Q

Minimum metal thickness for condensers

A

GA 12 (2.77 mm)

121
Q

Minimum thickness of pipe for acid/corrosive chemical exposure

A

3.2 mm

122
Q

Minimum area of CW & VS vent

A

1/2 the area of the drain

123
Q

Fixture unit limit for wet venting

A

1 and 2 F.U.

124
Q

Maximum number of fixtures served by a vertical wet vent

A

4

125
Q

Minimum size of a wet vent

A

51 mm Ø

126
Q

Required separation for CW & VS branch venting

A

More than 4.6 m

127
Q

Minimum waste pipe and trap size in CW & VS

A

2 pipe sizes larger

128
Q

Maximum length of tailpiece

A

0.60 m

129
Q

Minimum water seal for sand interceptors

A

152 mm

130
Q

Flow rate range for individual grease traps

A

1.3 L/s to 3.4 L/s

131
Q

Maximum number of fixtures connected to one grease trap

A

4

132
Q

Maximum horizontal distance from fixture outlet to grease trap

A

1.2 m

133
Q

Maximum vertical distance from fixture outlet to grease trap

A

0.75 m

134
Q

Minimum water seal for grease traps

A

51 mm

135
Q

Minimum clearance of galvanized pipes above ground

A

150 mm

136
Q

Minimum rise of vent above flood level rim before horizontal offset

A

152 mm

137
Q

Required size increase of vent stack above reconnection

A

1 pipe size increase

138
Q

Minimum extension of a vent pipe above the roof or firewall

A

0.15 m

139
Q

Minimum clearance of a vent through roof from any vertical surface

A

0.30 m

140
Q

Horizontal distance of a vent from openable windows, etc.

A

3 meters

141
Q

Vertical distance of a vent above openable windows, etc.

A

0.90 m

142
Q

Horizontal distance of a vent from lot lines

A

0.90 m

143
Q

Vertical extension of a vent above a multi-use roof

A

2.1 m

144
Q

Number of stories requiring a parallel vent stack

A

10 or more

145
Q

Yoke vent interval

A

Every 5 floors

146
Q

Yoke vent connection height above the floor

A

Not less than 1 m

147
Q

Minimum size of an individual vent

A

32 mm

148
Q

Fraction of vent length allowed horizontally

A

Not specified

149
Q

Maximum number of fixtures served by a common vertical vent

A

2

150
Q

Minimum size for screening solids from laundry discharge

A

12.7 mm or larger

151
Q

Minimum outlet size of a sand interceptor

A

76 mm Ø

152
Q

Minimum net opening dimension of sand interceptor inlet

A

0.2 m²

153
Q

Minimum depth of sand interceptor under outlet pipe

A

610 mm

154
Q

Area increase of inlet section per additional flow of 18.9 LPM

A

0.09 m²

155
Q

Proportion of inlet section for sand interceptor outlet

A

500%

156
Q

Distance of trap to vent for different pipe diameters

A

32mm Ø: 762mm, 38mm Ø: 1067mm, 51mm Ø: 1524mm, 76mm Ø: 1829mm, 102mm Ø: 3048mm

157
Q

Maximum length between water closet and vent

A

1829mm

158
Q

Minimum thickness for rainwater downspout or conductor

A

GA 26

159
Q

Minimum net inlet area of roof drains with different strainers

A

Dome-type: 1.5x outlet area, Roof deck: 2x outlet area

160
Q

Rainfall intensity used around Manila

A

102 mm/hour

161
Q

Additional percentages for rain exposure on building sides

A

1 wall: 50%, 2 adjacent walls: 35%, 2 opposite walls: 0%, tall building side: 50%

162
Q

Equivalent rectangular dimensions for semi-circular gutter bottoms

A

Depth: 0.392x diameter, Width: 0.8862x diameter

163
Q

Minimum diameter of building sewer if public sewer > 61m away

A

Not specified, but not less than building drain size

164
Q

Recommended and allowable slopes for different sewer diameters

A

102 mm or 152.4mm: 1%, 203 mm or larger: 0.5%

165
Q

Minimum building sewer depth below ground surface

A

0.30 m

166
Q

Maximum distance between manholes

A

91 m

167
Q

Minimum horizontal distance from building to sewer

A

0.60 m

168
Q

Minimum horizontal distance from property line to sewer

A

0

169
Q

Minimum distance from water supply wells or streams to sewer

A

15.2 m

170
Q

Allowable reduction for water supply wells with approved materials

A

7.6 m from 15.2 m

171
Q

Maximum/Minimum fixture units for various sewer diameters at 2% slope

A

152mm: 3,900/275, 203mm: 6,800/300, 254mm: not specified

172
Q

Minimum depth for molten pig lead in joints

A

25.4 mm

173
Q

Minimum wall thickness for Schedule 80 threaded plastic pipe

A

Schedule 80

174
Q

Minimum weight and thickness for different lead uses

A

Lead safe pans: 19.56 kg/m², 1.6 mm; Flashing/vent terminals: 14.63 kg/m², 1.2 mm

175
Q

Minimum wall thickness for lead bends and traps

A

3.2 mm

176
Q

Minimum thickness for caulked-on closet rings or flanges

A

6.4 mm

177
Q

Minimum water pressure requirements for different plumbing groups

A

Flushometer valves: 103.42 kPa, Flush tanks: 55.16 kPa

178
Q

Multiplier for elevation above water main to determine loss in static pressure

A

9.79

179
Q

Multiplier for maximum separate demands for fixtures with combined hot and cold water

A

75%

180
Q

Maximum water velocity for sizing supply piping

A

3 m/sec

181
Q

Minimum area of trench bottom for disposal field

A

14 m²

182
Q

Sidewall area added to trench bottom absorption

A

1 ft to 3 ft

183
Q

Minimum additional area for leaching beds instead of trenches

A

50%

184
Q

Minimum separation of leach bed from water table

A

1.5 m

185
Q

Minimum compartments in a septic tank (plumbing code)

A

2

186
Q

Minimum compartments in a septic tank (new ordinance)

A

3

187
Q

Minimum capacity of septic tank inlet compartment

A

2/3 of tank capacity

188
Q

Minimum liquid capacity of septic tank inlet compartment

A

2 m³

189
Q

Minimum length of septic tank inlet compartment

A

1.5 m

190
Q

Minimum width of septic tank

A

0.9 m

191
Q

Maximum capacity of secondary compartment in septic tank

A

1/3 of tank capacity

192
Q

Minimum capacity of secondary compartment in septic tank

A

1 m³

193
Q

Minimum length of secondary compartment if tank > 6 m³

A

1.5 m

194
Q

Minimum number of manholes for septic tank

A

2

195
Q

Minimum dimension of a septic tank manhole

A

508 mm

196
Q

Requirement for additional manhole if inlet compartment > 3.7 m

A

Yes

197
Q

Minimum size of vertical leg of inlet and outlet fitting in septic tank

A

104.6 mm

198
Q

Minimum horizontal dimension of baffle type fitting

A

106.6 mm

199
Q

Minimum extension of inlet and outlet pipe or baffle above water surface

A

101.6 mm

200
Q

Minimum extension of inlet and outlet pipe or baffle below water surface

A

304.8 mm

201
Q

Minimum vertical clearance of inlet pipe above outlet pipe

A

50.8 mm

202
Q

Minimum extension of septic tank sidewalls above liquid depth

A

228.6 mm

203
Q

Minimum vertical clearance of septic tank cover above back vent openings

A

50.8 mm

204
Q

Minimum extension of septic tank partitions or baffles above liquid level

A

101.6 mm

205
Q

Minimum size of inverted fitting in septic tank

A

104.6 mm

206
Q

Minimum earth load support capacity of septic tank covers

A

14.4

207
Q

Minimum extension of bituminous coating in septic tanks

A

101.6 mm

208
Q

Minimum wall thickness of steel septic tank

A

GA 12 (2.8 mm)

209
Q

Ranking depth to remove materials from trenches before placing filter

A

25.44 mm

210
Q

Size range of filter materials for trenches

A

19.1 - 63.5 mm

211
Q

Termination of filter material from seepage pit

A

1.5 m

212
Q

Minimum vertical clearance in distribution box

A

25.4 mm

213
Q

Required line length for dosing tank

A

More than 152.4 meters

214
Q

Interval for sewage discharge from dosing tank

A

3 – 4 hours

215
Q

Number of siphons or pumps for long pipe lengths

A

2

216
Q

Minimum number of drain lines per field

A

1

217
Q

Maximum length of each line in a disposal field

A

305 m

218
Q

Minimum bottom width of trench

A

457.2 mm

219
Q

Maximum bottom width of trench

A

914.4 mm

220
Q

Minimum depth of earth cover over drain lines

A

304.8 mm

221
Q

Recommended depth of earth cover over drain lines

A

457.2 mm

222
Q

Minimum thickness of filter material under drain lines

A

304.8 mm

223
Q

Minimum thickness of filter material over drain lines

A

50.8 mm

224
Q

Minimum spacing between leaching beds

A

1.2 m

225
Q

Horizontal spacing of distribution drain lines

A

1.8 m

226
Q

Distance from the perimeter of leaching bed to distribution line

A

0.9 m

227
Q

Conditions for cesspool installation

A

Public sewer available in less than 2 years

228
Q

Minimum sidewall depth of cesspool below inlet

A

6.1 m

229
Q

Minimum extension of vented leg in cesspool

A

403.8 mm

230
Q

Minimum vertical clearance of outlet flow line below cesspool inlet

A

152.4 mm

231
Q

Minimum number of compartments for interceptors

A

2

232
Q

Minimum horizontal distance of tree from septic system

A

4.6 m

233
Q

Minimum extension of vented leg fitting below seepage pit inlet

A

304.8 mm

234
Q

Minimum diameter of seepage pit

A

2.2 m

235
Q

Minimum thickness of seepage pit concrete wall

A

101.6 mm

236
Q

Thickness of chamfered concrete block in seepage pits

A

304.8 mm

237
Q

Minimum thickness of clean gravel or rock in seepage pit

A

19.1 mm

238
Q

Thickness behind brick, block, or concrete liner

A

152.4 mm

239
Q

Minimum compressive strength of brick or block

A

17,225 kPa

240
Q

Minimum thickness of cement mortar covering for seepage pit arch or dome

A

50.8 mm

241
Q

Minimum extension of mortar covering beyond the sidewall of the seepage pit

A

152.4 mm

242
Q

Minimum thickness of reinforced concrete slab cover

A

127 mm

243
Q

Minimum earth load support capacity of slab cover

A

19.2 kPa

244
Q

Minimum dimension of inspection hole for seepage pit

A

228.6 mm

245
Q

Depth of top of seepage pit arch or cover below ground surface

A

457.2 mm to 1.2 m

246
Q

Maximum absorption capacity for Coarse Sand or Gravel

A

203.7 L/m²

247
Q

Maximum absorption capacity for Fine Sand

A

162.9 L/m²

248
Q

Maximum absorption capacity for Sandy Loam or Sandy Clay

A

101.9 L/m²

249
Q

Maximum absorption capacity for Clay with considerable sand or gravel

A

44.8 L/m²

250
Q

Maximum absorption capacity for Clay with a small amount of sand or gravel

A

33.8 L/m²

Plumbing Refreshers (8 decks)

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